Results 181 to 190 of about 2,315 (212)

Nanosilica synthesized by the Pechini method for potential application as a catalytic support

Ceramics International, 2014
Abstract The purpose of this work was to synthesize and characterize silicon oxide (SiO2) using TEOS as the source of silica to obtain a nano-ceramic material with potential for application as a catalytic support. The material, which was prepared by the Pechini method, was calcined at temperatures of 600, 700, 800 and 900 °C for 1 h.
P.C. Ribeiro, R.H.G.A. Kiminami, A.C.F.M. Costa   +2 more
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Lithium ionic conductivity of Li7-3xFexLa3Zr2O12 ceramics by the Pechini method

Ionics, 2020
Li7La3Zr2O12 (LLZO) with garnet structure has been acknowledged as a promising solid electrolyte for the next generation Li-ion batteries owing to its high chemical stability against Li metal and relatively high Li-ion conductivity. In this work, Li7-3xFexLa3Zr2O12 ceramics were prepared by the Pechini method.
Zhenzhu Cao, Weiwei Wu, Yue Li, Jiajia Zhao, Weiyan He, Jinrong Liu, Hong Zhang, Guorong Li   +7 more
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Ethanothermal reduction to MoO2 microspheres via modified Pechini method

Journal of Crystal Growth, 2006
Abstract The Pechini process was modified to provide an ethanothermal reduction route to molybdenum dioxide microspheres at ambient temperature. The effects of citric acid (CA), ethylene glycol (EG), and H2SO4 environment on the formation of molybdenum oxide (MoO2) were studied.
Shutao Wang, Changhua An, Yange Zhang, Zude Zhang, Yitai Qian   +4 more
openaire   +1 more source

TiO₂ Synthesis by the Pechini’s Method and Application for Diclofenac Photodegradation^†

Photochemistry and Photobiology, 2020
AbstractIn this work, the effect of the calcination temperature on the TiO2 synthesis using Pechini’s method was reported. The adopted calcination temperatures were 500, 600, and 700°C. XRD measurements indicated the composition of crystalline phases, and from there, the conversion of the anatase phase to rutile.
Danilo R. Souza, João Vitor S. Neves, Yago K.S. França, Wellington C. Malheiro   +3 more
openaire   +2 more sources

La0.7Sr0.3MnO3 Nanoparticles Synthesized via the (Pechini) Polymeric Precursor Method

Journal of Superconductivity and Novel Magnetism, 2012
In this paper, we report the preparation of La0.7Sr0.3MnO3 colossal magnetoresistance nanoparticles by means of the polymeric precursor method, at a temperature of 650 °C. Rietveld refinement of the X-ray powder diffraction spectra shows that the chemically-synthesized manganite is single-phase with the space group R3C.
J. Mera, M. Mera, C. Cordoba, O. Paredes, O. Morán   +4 more
openaire   +1 more source

Synthesis of La0.8Sr0.2FeO3 perovskites nanocrystals by Pechini sol–gel method

Materials Letters, 2013
Abstract Pechini sol–gel method has been employed for the preparation of nanocrystalline La0.8Sr0.2FeO3 perovskite. The synthesis procedure was optimized by varying the calcination temperature. The results revealed the decomposition of the resin precursor and confirmed the formation of the perovskite phase starting at 600 °C with spherical morphology
Raquel Del Toro, Petra Hernández, Yraida Díaz, Joaquín L. Brito   +3 more
openaire   +1 more source

Optical properties of Eu3+-doped CaAl4O7 synthesized by the Pechini method

Optical Materials, 2010
Abstract Ca1−xEuxAl4O7 (x = 0, 0.002, 0.01, 0.02, 0.05, 0.1) and Ca1−2xEuxNaxAl4O7 (x = 0.002, 0.02, 0.05, 0.1) crystalline phosphor powders have been synthesized by modified Pechini method and their spectroscopic properties at room and liquid nitrogen temperature were measured.
M. Puchalska, Y. Gerasymchuk, E. Zych
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Preparation of Pt thin film electrodes using the Pechini method

Materials Letters, 2006
Abstract This paper presents the preparation and characterization of Pt electrodes obtained using the polymeric precursor method on Ti substrates. In the present case, this route leads to the formation of metallic platinum rather than the formation of platinum oxide.
R.G. Freitas, R.T.S. Oliveira, M.C. Santos, L.O.S. Bulhões, E.C. Pereira   +4 more
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Synthesis and luminescence properties of YAG:Ce nanopowder prepared by the Pechini method

Advanced Powder Technology, 2012
Abstract Cerium-doped yttrium aluminum garnet (YAG:Ce) powder was synthesized by the Pechini method with aluminum nitride, yttrium nitride, citric acid and ethylene glycol as the starting materials. Structure, morphology and luminescence spectra were investigated by using X-ray diffraction, thermogravimetric and differential thermal analysis ...
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Synthesis and dielectric properties of the Aurivillius oxide BaBi4Ti4O15 by the Pechini method

Journal of Sol-Gel Science and Technology, 2014
Barium bismuth titanate (BaBi4Ti4O15, BBT) powders were synthesized using the Pechini method, and related ceramics were prepared using a solid-state reaction method. The structure and morphology of the BBT specimens were examined by the X-ray diffraction and scanning electron microscopy. Complexation of citric acid with metallic cations was detected by
Pinyang Fang, Zengzhe Xi, Wei Long, Xiaojuan Li, Shaojun Qiu   +4 more
openaire   +1 more source